Earthquake with magnitude of Md 2.1 on date 11-10-1988 and time 10:17:17 (UTC) in region 1 km NW Grosso (TO)

A magnitude Md 2.1 earthquake occured in region: 1 km NW Grosso (TO), on

  • 11-10-1988 10:17:17 (UTC)
  • 11-10-1988 11:17:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.2640, 7.5520 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Grosso TO 1 1018 1018
Mathi TO 1 3921 4939
Villanova Canavese TO 2 1186 6125
Nole TO 3 6892 13017
Balangero TO 3 3156 16173
Cafasse TO 3 3451 19624
San Carlo Canavese TO 5 4031 23655
Ciriè TO 5 18909 42564
Fiano TO 6 2695 45259
Rocca Canavese TO 6 1708 46967
Vauda Canavese TO 6 1464 48431
Corio TO 6 3277 51708
Lanzo Torinese TO 6 5086 56794
Vallo Torinese TO 6 774 57568
Germagnano TO 7 1201 58769
Barbania TO 7 1607 60376
Robassomero TO 7 3057 63433
Levone TO 8 442 63875
Varisella TO 8 810 64685
San Maurizio Canavese TO 8 10237 74922
Coassolo Torinese TO 8 1547 76469
Front TO 9 1677 78146
San Francesco al Campo TO 9 5005 83151
La Cassa TO 9 1788 84939
Traves TO 10 518 85457
Rivara TO 10 2659 88116
Forno Canavese TO 10 3446 91562
Monastero di Lanzo TO 10 350 91912
Pratiglione TO 11 535 92447
Busano TO 11 1687 94134
Pessinetto TO 12 606 94740
Pertusio TO 12 778 95518
Caselle Torinese TO 12 19136 114654
Givoletto TO 12 3914 118568
Mezzenile TO 13 786 119354
Prascorsano TO 13 745 120099
Canischio TO 13 277 120376
Rivarossa TO 13 1610 121986
Favria TO 13 5196 127182
San Ponso TO 13 267 127449
San Gillio TO 14 3174 130623
Ceres TO 14 1065 131688
Viù TO 14 1051 132739
San Colombano Belmonte TO 14 383 133122
Oglianico TO 14 1506 134628
Val della Torre TO 14 3869 138497
Druento TO 14 8622 147119
Valperga TO 15 3166 150285
Lombardore TO 15 1742 152027
Borgaro Torinese TO 15 13592 165619
Salassa TO 15 1838 167457
Leini TO 16 16356 183813
Rivarolo Canavese TO 16 12488 196301
Venaria Reale TO 16 34193 230494
Cantoira TO 16 564 231058
Feletto TO 16 2310 233368
Cuorgnè TO 16 9906 243274
Alpette TO 17 261 243535
Sparone TO 17 1038 244573
Bosconero TO 17 3167 247740
Pont-Canavese TO 18 3483 251223
Ozegna TO 18 1230 252453
Ciconio TO 18 384 252837
Lusigliè TO 18 559 253396
Pianezza TO 18 15152 268548
Castellamonte TO 18 9859 278407
Caselette TO 18 3060 281467
Locana TO 19 1498 282965
San Benigno Canavese TO 19 5992 288957
Alpignano TO 19 17008 305965
Volpiano TO 19 15416 321381
Chiesanuova TO 19 205 321586
Ribordone TO 19 53 321639
Rubiana TO 19 2400 324039
Borgiallo TO 19 569 324608
Chialamberto TO 20 345 324953
Frassinetto TO 20 274 325227

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Torino (890529 inhabitants)
31 Km NW of Moncalieri (57294 inhabitants)
65 Km NW of Asti (76202 inhabitants)
86 Km W of Novara (104380 inhabitants)
92 Km W of Alessandria (93943 inhabitants)
97 Km N of Cuneo (56081 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.1
M 2.3
1988-10-11
10:17:17
45.264 7.552 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 78519
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-10-11 10:17:17 ± 0.176
Latitude 45.2640 ± 0.0114
Longitude 7.5520 ± 0.0166
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 78519

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1817.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.00737
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 78519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:13:50

M:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 78519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PZZ.Z. 1988-10-11T10:17:45.40 10.0 undecidable manual SG 202 0.8214 -0.61 0.2
--.RRL.Z. 1988-10-11T10:17:39.70 10.0 undecidable manual SG 237 0.6327 -0.5 0.4
--.ORX.Z. 1988-10-11T10:17:34.30 10.0 undecidable manual SG 38 0.4662 -0.57 0.4
--.PZZ.Z. 1988-10-11T10:17:33.90 10.0 undecidable manual PG 202 0.8214 -0.14 1.6
--.ORO.Z. 1988-10-11T10:17:33.66 10.0 undecidable manual SG 39 0.4662 -1.08 0
--.RRL.Z. 1988-10-11T10:17:31.15 10.0 undecidable manual PG 237 0.6327 0.47 1.1
--.LSD.Z. 1988-10-11T10:17:30.20 10.0 undecidable manual SG 304 0.333 -0.28 0.7
--.ORX.Z. 1988-10-11T10:17:28.13 10.0 undecidable manual PG 38 0.4662 0.52 1
--.ORO.Z. 1988-10-11T10:17:27.77 10.0 undecidable manual PG 39 0.4662 0.24 1.9
--.RSP.Z. 1988-10-11T10:17:26.90 10.0 undecidable manual SG 241 0.2331 -0.27 0.7
--.LSD.Z. 1988-10-11T10:17:25.40 10.0 undecidable manual PG 304 0.333 -0.03 2.2
--.RSP.Z. 1988-10-11T10:17:23.43 10.0 undecidable manual PG 241 0.2331 0.27 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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